Problem
A 【例9.3】小写字母转大写字母
B 土拨鼠，上灯台
C 土拨鼠跑酷
D 打印三角形(有数据，20个!)
E n天签到
F 土拨鼠的幸运数字2

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非常“简单”

Status: Done
Rule: ACM/ICPC
Problem: 6
Start at: 2025-1-22 17:00
End at: 2025-7-8 9:00
Duration: 4000 hour(s)
Host: 李金铭
Partic.: 4